Maryland is starting to build a workforce of contact tracers--people who can talk to someone who has tested positive for Covid-19, persuade them to self-isolate, and ask who they've been in touch with who now may also have the disease. Tracing is as much about giving information and help in finding what someone needs to stay in quarantine … as about sleuthing out friends and connections. Dr. Emily Gurley of Johns Hopkins describes the skills of a contact tracer. And we ask Anne Arundel County’s health officer Dr. Nilesh Kalyanaraman, and nurse Karen Karnes how it works. For information on contact tracing data collection, visit this link.